Mophead with quick releasing mop clamp



Feb. 5, 1952 F. E. NEZAMIS 2,584,729

MOPHEAD WITH QUICK RELEASING MOP CLAMP Filed on. 20, 1947 IN VEN TOR.

Patented Feb. 5, 1952 UNITED STATES PAT NT [OFFICE 'MoPHE AnwI'rH QUICKRELEASINGY- MOP CLAMP I Frank E. Nezamis, Kalamazoo, Mich.

Application October 20, 1947, Serial No. 780,781

This invention relates to improvements in mop head'with quick releasingmop clamp.

The principal objects of this invention are: First, to provide a novelform ofmop head which is easily opened to free the'mop therefrom.'Second, to provide a mop head of sturdy inexpensive construction whichwill tightly grip a mop.

Third, to provide a mop head with simple clamping members which can beeasily operated.

with the fingers even when the material of the mop is swollen orexpanded as when wet.

Fourth, to provide an axially slidable mop supporting member for a mophead which may be locked in place to cooperate with a screw clamp andwithdrawn axially for releasing the mop without first releasing thescrew clamping member of the head.

Other objects and advantages pertaining to the details and economies ofmy invention will be apparent from a consideration of the followingdescription and claims.

The drawings, of which there is one sheet, illustrate a preferred formof my mop head.

Fig. 1 is an elevational view of my mop head in open or unclampedposition and partially broken away in transverse cross section.

Fig. 2 is avertical cross sectional view along the line 2-2 in Fig. 1and shows a mop in operative clamped position in the mop head.

Fig. 3 is a transverse cross sectional view along the line 33 in Fig. 1.

Fig. 4 is a fragmentary vertical cross sectional view along the line 44in Fig. 1.

My mop head consists of a frame generally indicated at I having spacedparallel side arms 2 which converge at their upper ends and are joinedwith an integral socket or ferrule portion 3 adapted to receive the endof the mop handle 4. A cross bar 5 is formed integrally as by castingwith the frame I and extends between the side arms 2 at points spacedfrom the lower ends of the side arms. The cross bar 5 has an enlargedcentral portion 6 with a threaded aperture 1 formed therein forreceiving the thumb screw. 8.

The inner or opposed faces of the side arms 2 are provided below thecross bar 5 with inwardly projecting ribs 9 forming guide rails for aclamp bar I 0. The ends of the clamp bar I 0 have semi-cylindricalgrooves I I formed therein for receiving the ribs 9 to retain and guidethe clamp bar between the side arms 2. The

ribs 9 terminate as at 9I short of the lower ends of the side arms andthe side arms are provid- 2 Claims. (01. 15-153) ed with transverselyaligned apertures I2 io receiving the mop holding rod I3. The undersurface of the clamp bar II) has a semi-cylindrical groove I4 formedtherein and arranged to nest over the holding rod I3 and tightly clampthe mop I5 to the holding rod as illustrated in Fig. 2. The center ofthe clamp bar I0 is provided with an upstanding boss I6 engageable withthe lower end of the thumb screw 8.

One or both of the side arms 2 have a notch I1 formed therein extendingradially from the aperture I2 as is most clearly shown in Fig. 4 and theholding rod I3 is provided with a looking pin or lug I8 which extendsradially from the holding rod and is arranged to pass through the notchI1 when the holding rod is inserted in the side arms. A head I9 isformed on the holding rod for manipulating the rod and limiting itsposition on the side arms 2.

With the construction described my thumb screw and clamp bar may bebacked off and my holding rod removed to place the folded center of themop between the ends of the side arms. The holding rod may then beinserted in the holes I2 between the folds of the mop and locked inplace by rotating the lug I 8 out of registry with the notch I1. Thethumb screw may then be turned to clamp the clamp bar against the mopand the holding rod.

When the mop is placed in the frame dry as is the usual case and thethumb screw tightened as much as is conveniently possible with the thumbscrew, later wetting of the mop will cause it to swell furthertightening the mop. The wet mop may be quickly and easily released byturning the head I9 and rod I3 to register the lug I8 with the slot I1and withdraw the rod. The rod will slip out easily even if the threadsof the thumb screw have been tightly jammed by swelling of the mop.

I have thus described a highly practical embodiment of my mop head sothat others may reproduce the same without further description.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A mop head comprising a rigid frame having parallel side armsextending from a handle receiving ferrule and having a cross barextending between and connected to said arms intermediate of the endsthereof, said cross bar having'a threaded aperture formed therein, guideribs formed on the opposed faces of said arms below said cross bar, aclamp bar having notched ends slidably received on said ribs, a thumb onone end of said rod space 79 1 .S i

whereby said knob and said lug will engage oppositely facing surfaces onsaid frame when said lug is turned out of regist y Wlthsaid notch toprevent axial movement of said rod.

2. A mop head comprising a frame having par- 1 allel side arms extendingfrom a handle, receiving portion and a cross bar extending between andconnected to said arms intermediate of the ends of said arms, a clampbar interlockingly engag-v ing said arms and being slidablelongitudinally .th ca eng elow a d cros banadiustablescrew m n .threadnsly nga ed n in said cro s bar and axially hea ing umonnecteiily againssaid c mp. r, t cn siei said arms havin tr.

rers ahened h le f rm d there n one of said 2 holeshavine. a radiallyexte din notch, a mop old n rod pos tion d in said holes and ax allyfie:

removable therefrom and rotatable therein, said rod having a lugarranged to pass through said notch and be rotated into rodlockingengagement with the arm in which said notch is formed, and a knob on oneend of said rod spaced from said lug whereby said knob and said lug willengage oppositely facing surfaces on said frame when said lug is turnedout of registry with said notch to preventgixial movement; QiSQldjI'Od.

' FRANK E. NEZAMIS.

REFERENCES CITED 131 iqllgwmg references are of record in the fil evofthis'patent:

) UNITED STATES PATENTS Numb r Na Date 39,305 Murphy July 21, 1863 3,317Sirret Apr. 13, 1869 497,292 Cook r May 9, 1893 6, ,1 .9 Au l 1899795,810 Bows Aug-i 1.1905 1 3 3 qu ar c A s- 4.4 .li339,3.98. Kau man ay.7 v 1119 1,55 49,14: Laha Marl 93, 2,005,9Q4. Myer Ju ezfi, .1935.2,.1.13,8I7,2 Hoyer r o, o e -g Jan. '1. 184

